Post-processing deblocking filter algorithm for various video decoders

C. H. Yeh*, S. J.F. Jiang, T. F. Ku, M. J. Chen, J. A. Jhu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


This work presents a low-complexity post-processing deblocking filter to reduce the blocking effects. The proposed algorithm can be applied to current block-based video standards without modifications. The proposed algorithm automatically detects blocking effects at 4×4 or 8×8 block boundaries. In the filtering stage, the proposed algorithm provides four filter modes to eliminate the effects of blocking in various frequency regions based on region activity analysis. To improve both subjective and objective qualities, the proposed algorithm also considers the chrominance filter. Experimental results demonstrate that the proposed algorithm provides higher-quality MPEG-4 and H.264/AVC reconstructed video sequences with a lower processing time, than many approaches.

Original languageEnglish
Pages (from-to)534-547
Number of pages14
JournalIET Image Processing
Issue number5
Publication statusPublished - 2012 Jul
Externally publishedYes

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering


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